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Topic: Compressor cycle ? (Read 951 times) previous topic - next topic

Re: Compressor cycle ?

Reply #25
Does anyone have part # for gov that is 110 psi cut in and 130 psi cut out? As Bob was talking about
Art
1997 Prevost 40'
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Re: Compressor cycle ?

Reply #26
Napa or a truck stop will have them under the d-2 govenor,is very common part.I would put a new one on and keep the old for a spare,if you have to adjust the old one to bring it to specs it's worn out.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Compressor cycle ?

Reply #27
I suspect the brake can's are leaking and Foretravel had given me part # for cans  L- C28-3276X24    R- C29-3276X24 looking at old cans they say Type 24  Brand MGM and they have a tag  2.5 in  or 54mm stroke , they look like Short shafts. Found can's were about $250 to $275 apiece. 
Art
1997 Prevost 40'
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Re: Compressor cycle ?

Reply #28
Sadly, the adjustment is not intuitive.  :(

Excerpt from Bendix manual linked in my post (above):

A. Remove the top cover from the governor.
B. Loosen the adjusting screw locknut.
C. To raise the pressure settings, turn the adjusting screw counter-clockwise.  To lower the pressure settings, turn the adjusting screw clockwise.
Note: Be careful not to overadjust.  Each 1/4 turn of the adjusting screw raises or lowers the pressure setting approximately 4psi.
D. When proper adjustment is obtained, tighten the adjusting screw locknut and replace the cover.
Note: The pressure range between cut-in and cut-out is not adjustable.
Argggg! Given a 50/50 chance on getting something right I will be 100% wrong!  ;)  :D  ;D  >:(  :(

see ya
ken
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Re: Compressor cycle ?

Reply #29
Thirty pounds difference may mean the D2 valve is weak or oil soaked.  Mine was.  Now 110-130
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Compressor cycle ?

Reply #30
I suspect the brake can's are leaking and Foretravel had given me part # for cans  L- C28-3276X24    R- C29-3276X24 looking at old cans they say Type 24  Brand MGM and they have a tag  2.5 in  or 54mm stroke , they look like Short shafts. Found can's were about $250 to $275 apiece. 

Art,
If you think you have a problem and are going to do anything to your air chambers why not pull them off and get them rebuilt?  No you can't do it your self as you need a special press to keep from getting killed taking them apart, some of the new chambers are now sealed to keep people from getting hurt.  The diaphragms are about $10 each , springs $7.50, cleaning and rattle can paint and your bill should be less than $120 for both (possible slightly more due to parts needed and the area you live)

Pamela & Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Compressor cycle ?

Reply #31
Art,
If you think you have a problem and are going to do anything to your air chambers why not pull them off and get them rebuilt?  No you can't do it your self as you need a special press to keep from getting killed taking them apart, some of the new chambers are now sealed to keep people from getting hurt.  The diaphragms are about $10 each , springs $7.50, cleaning and rattle can paint and your bill should be less than $120 for both (possible slightly more due to parts needed and the area you live)

Pamela & Mike
Look at reply #10 they are only $58.00 new
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Compressor cycle ?

Reply #32
The brake chambers (cans) come two ways.
Complete chamber has the piggy back and diaphragm and mount with the pushrod sticking out. This needs to have the pushrods cut to the same length as the one you remove and you may have to spin the piggyback in relation to the two mounting studs to get the airlines to reach ok with some slack.
Piggybacks are just the section with the park brake spring in it up to where the diaphragm is located. The ones I buy have a diaphragm and clamp included.  Apply service brakes with air and while applied clamp the pushrod with vicegrips (holding the brake applied) then cage the park brake, insert cage bolt and push on brake button to make it easier to run the nut down so the spring gets trapped. Then undo the lines and the diaphragm clamp.

Type 24 is the size of the chamber 24 square inches and the stroke indicates long or short stroke. I recommend having some experienced help with this for the first time you do it.
Toby a 94 u280
Cummins 8.3
6 speed Allison
Exhaust brake


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